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Distinct brain networks for adaptive and stable task control in humans

Proceedings of the National Academy of Sciences - PNAS, 2007-06, Vol.104 (26), p.11073-11078 [Peer Reviewed Journal]

Copyright 2007 The National Academy of Sciences of the United States of America ;2007 by The National Academy of Sciences of the USA 2007 ;ISSN: 0027-8424 ;EISSN: 1091-6490 ;DOI: 10.1073/pnas.0704320104 ;PMID: 17576922

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Title:
Distinct brain networks for adaptive and stable task control in humans
Author: Dosenbach, Nico U.F ; Fair, Damien A ; Miezin, Francis M ; Cohen, Alexander L ; Wenger, Kristin K ; Dosenbach, Ronny A.T ; Fox, Michael D ; Snyder, Abraham Z ; Vincent, Justin L ; Raichle, Marcus E ; Schlaggar, Bradley L ; Petersen, Steven E
Subjects: Adolescent ; Adult ; Behavioral neuroscience ; Biological Sciences ; Brain ; Brain - physiology ; Brain Mapping - methods ; Cerebellum ; Cerebral Cortex - physiology ; Connected regions ; Connectivity ; Coordinate systems ; Correlations ; Humans ; Magnetic Resonance Imaging ; Mental Processes - physiology ; Nerve Net ; Nervous system ; Neural networks ; Neurons ; Neurosciences ; NMR ; Nuclear magnetic resonance ; Prefrontal cortex ; Psychomotor Performance ; Thalamus
Is Part Of: Proceedings of the National Academy of Sciences - PNAS, 2007-06, Vol.104 (26), p.11073-11078
Description: Control regions in the brain are thought to provide signals that configure the brain's moment-to-moment information processing. Previously, we identified regions that carried signals related to task-control initiation, maintenance, and adjustment. Here we characterize the interactions of these regions by applying graph theory to resting state functional connectivity MRI data. In contrast to previous, more unitary models of control, this approach suggests the presence of two distinct task-control networks. A frontoparietal network included the dorsolateral prefrontal cortex and intraparietal sulcus. This network emphasized start-cue and error-related activity and may initiate and adapt control on a trial-by-trial basis. The second network included dorsal anterior cingulate/medial superior frontal cortex, anterior insula/frontal operculum, and anterior prefrontal cortex. Among other signals, these regions showed activity sustained across the entire task epoch, suggesting that this network may control goal-directed behavior through the stable maintenance of task sets. These two independent networks appear to operate on different time scales and affect downstream processing via dissociable mechanisms.
Publisher: United States: National Academy of Sciences
Language: English
Identifier: ISSN: 0027-8424
EISSN: 1091-6490
DOI: 10.1073/pnas.0704320104
PMID: 17576922
Source: GFMER Free Medical Journals
MEDLINE
PubMed Central

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Distinct brain networks for adaptive and stable task control in humans

Copyright 2007 The National Academy of Sciences of the United States of America ;2007 by The National Academy of Sciences of the USA 2007 ;ISSN: 0027-8424 ;EISSN: 1091-6490 ;DOI: 10.1073/pnas.0704320104 ;PMID: 17576922

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